I emailed the team at bitclave, a decentralized search engine, today to learn more about how they are going to protect advertisers from searchers gaming the system and just searching for things purely to benefit from advertisers paying to make them an offer, which is how bitclave works. You get paid as the user for a brand to have the privilege to market to you. A project to keep an eye on. A little early for me to invest since it has only been on exchanges for like a month. I tend to like waiting a few months to let the ICO hysteria die off and tank the price.